Crystallization of germanium-silicon solid solution from the vapour phase in microgravity conditions |
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Authors: | VS Zemskov IN Belokurova BS Vasilina OI Mavrin |
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Institution: | The Baikov Institute of Metallurgy, U.S.S.R. Academy of Sciences, Moscow, U.S.S.R. |
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Abstract: | Mass transport has been investigated in the closed system Ge-Si-Br used for preparing germanium-silicon solid solution crystals by chemical transport reaction method in space. It has been shown that the experimental rate of mass transport may be analytically described in proposing a pure diffusion mechanism. In space, growth of needles and whiskers occured without practically formation of a polycrystalline layer characteristic of on-earth experiments. |
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